Energy-saving method for gas combustion and burner thereof

ABSTRACT

The present invention relates to a method and a device taking gas as fuel in industry, dining halls, power plants and the like, in particular to an energy-saving, high-efficiency and environment-friendly method and a device for gas combustion. The energy-saving method for gas combustion is characterized in that: the combustion method is that: 1. gas enters into a hearth for one time or times of compression and expansion; 2. air is introduced into the hearth and is mixed with the gas; 3. the gas is ignited, the volume of the gas and the volume of the air are rapidly expanded and compressed in the hearth, and the bonds of gas molecules are cracked; 4. the gas rotates in the hearth at a high speed, and is fully combusted in a stove body to emit heat; and 5. when the gas is combusted, the gas is preheated before entering into the hearth. The present invention further discloses a device for realizing the method. When the device is used in the said method, a series of oxidization and reduction reactions take place in all substances in the gas when the gas is continuously expanded and decomposed, and the gas is converted to extremely high heat to be emitted and is sufficiently combusted, so that the gas is combusted more sufficiently, and the energy is saved.

FIELD OF THE INVENTION

The present invention relates to a method and a device for utilizing gas as fuel in industry, dining halls, power plants and the like, in particular to an energy-saving method and a device for gas combustion which are high-efficiency and environment-friendly.

BACKGROUND OF THE INVENTION

Gas combustion process in the existing gas burner used in industry, dining halls, power plants and the like is as follows: gas is directly transported to a burner port to be burned in an open way, or the burner port is provided with some netty or multihole distributed gas dispersers for dispersedly combustion. Some gas burners are used in combination with a fan, such as CN patent number 200620175542 “vertical injecting rotational flow type high temperature-resistant combustion furnace”, and CN application number 200910128321.9 “safe energy-saving gas stove”. Their common disadvantages are as follows: when the gas is supplied at a low pressure, the burning quality is unstable when large-consumption mode is selected. Operating personnel will be endangered by thermal radiation emitted out of flame and more than 30% of the gas discharged to the living space before being completely burnt still contains harmful substances such as hydrocarbon, methane and carbon dioxide and gas as well, so that the environment will be polluted, and the precious resources will be wasted.

SUMMARY OF THE INVENTION

Aiming at the disadvantages that the living environment of human body is influenced since a mass of gas is wasted, a mass of harmful gas is discharged, and the environment is seriously polluted by the incomplete burning of the gas when the exciting combustion furnace is used, the present invention provides an energy-saving method and a device for gas combustion, wherein the energy-saving method for gas combustion comprises the following steps:

1) gas enters into a hearth for one time or times of compression and expansion; 2) air is introduced into the hearth and mixed with the gas; 3) the gas is ignited, the volume of the gas and the volume of the air are rapidly expanded and compressed in the hearth, and the bonds of gas molecules are cracked; 4) the gas rotates in the hearth at a high speed and heat is emitted after the gas is fully combusted in a stove body; and 5) when the gas is combusted, the gas is preheated before entering into the hearth.

A black-hole gas burner relating the above energy-saving method for gas combustion comprises a safety valve, a stove body and a siphoning and preheating gas drum. A hearth of the stove body is internally provided with an expander. The siphoning and preheating gas drum having a ring-shape is arranged surrounding the stove body, and is communicated with a induction trunk in the expander, and a plate with a circular hole in the central position is fixed on the stove body.

The said expander is comprised of an internal expander and an external expander. The internal/external expanders are cylindrical-shaped, square -shaped, polygon-shaped or star-shaped objects with a cavity. The side edge of each cavity is scattered with some through-holes, and the internal expander is sheathed with the external expander, so that a compression cavity is formed therebetween.

The number of the internal expander or the external expander is one or more than two.

A connecting piece is arranged between the internal expander and the external expander.

An induction trunk is arranged between the stove body and the hearth, and the side wall of the hearth is provided with a plurality of through-holes.

An eclectic igniter is arranged on the hearth.

The present invention has the benefits as follows:

The present invention adopts the gas siphoning and preheating gas drum, therefore, the gas burner can preheat the gas in the burner when the gas is supplied at low pressure, overcoming the defects as the utilization ratio of the gas is reduced after the firepower is reduced resulting from insufficient air supply when the gas is in large demand, and achieving the effects of improved utilization ratio, greater firepower, more saved energy and dramatically reduced harmful gas.

The present invention adopts the expander, therefore, when the gas burner is used, the volume of the gas is continuously expanded, and quickly expanded when the gas passes through the expander, so that the gas can be sufficiently burned, and the utilization ratio of the gas can be greatly improved.

The plate with the circular hole is arranged on the stove body, therefore, the gas is continuously cracked and quickly expanded through the internal/external expanders in the stove body and further compressed. When the gas is continuously expanded and compressed, the substances are concentrated to be small volume, the temperature and the density are increased to be at an extreme point during compressing, and the bonds of gas molecules among the substances are cracked, so as to generate fusion, cause high-speed rotation and focus on the center of the top end of the external expander to form into a vortex black point. Then the released flame outwards erupts from the black point through the circular hole on the plate, so as to be in the shape of tornado. In the whole process of burning, a series of oxidization and reduction reactions take place in all substances in the gas, and the gas is converted to extremely high heat to be emitted and is sufficiently combusted, so that the gas is combusted more sufficiently.

The present invention aims at solving at least the contradictions

Further aspects and advantages of the present invention will be given in the following description. They will become apparent from either the following description or the implementation of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or further aspects and advantages will be more apparent from the following description of embodiments with reference to the figures, in which:

FIG. 1 is a structure diagram showing specific embodiment 1 of the present invention.

FIG. 2 is a structure diagram showing specific embodiment 2 of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Embodiment 1

An energy-saving method for gas combustion comprises the following steps:

-1) gas enters into a hearth for one time or times of compression and expansion; -2) air is introduced into the hearth and is mixed with the gas; -3) the gas is ignited, the volume of the gas and the volume of the air are rapidly expanded and compressed in the hearth, and the bonds of gas molecules are cracked; -4) the gas rotates in the hearth at a high speed and is fully combusted in a stove body to emit heat; and -5) when the gas is combusted, the gas is preheated before entering into the hearth.

A device for implementing said energy-saving method for gas combustion is a black-hole gas burner, as shown in FIG. 1, the black-hole gas burner comprises a safety valve 1, a stove body 2 and a siphoning and preheating gas drum 3. A hearth 21 of the stove body 2 is internally provided with an expander 4 and the expander 4 is comprised of an internal expander 41 and an external expander 42. The internal/external expanders are respectively to be a cylindrical object with a cavity 6. The side edge of each cavity is provided with a plurality of through-holes 61, and the internal expander 41 is sheathed with the external expander 42, so that a compression cavity 7 is formed therebetween. A connecting piece 8 is arranged between the internal expander 41 and the external expander 42, and the internal expander 41 and the external expander 42 are connected with each other into a whole by the connecting piece, so that the gas burner is convenient to install and use. The siphoning and preheating gas drum 3 having a the ring-shape is arranged surrounding the stove body 2 and is communicated with a pipeline in the expander 4 in the hearth 21. The pipeline is connected with a gas input pot provided with the safety valve 1. A plate 5 with a circular hole 51 in the central postion is arranged on the top of the stove body 2, and the size of the circular hole 51 is 1/10-½ of an opening of the hearth. An induction trunk 9 is arranged between the stove body 2 and the hearth 21. The side wall of the hearth 21 is provided with a plurality of through-holes 211. An eclectic igniter 10 is arranged on the hearth 21, and the igniter is fixedly arranged on the stove body 2 and the hearth 21.

The specific embodiments will be further specified according to the working principle.

After the gas enters into the burner, the eclectic igniter 10 is started up, and the gas will be burnt to preheat the siphoning and preheating gas drum 3. The absorbed heat is conducted to the gas in the gas drum, so that the gas is expanded and pressurized. The gas flows out of the siphoning and preheating gas drum, and enters into the expander 4 through the pipeline. The volume of the gas reaches to the hearth 21 after being continuously cracked and quickly expanded by the internal expander 41 and the external expander 42 of the expander 4. In the hearth, as the stove body 2 is provided with the plate 5 with the circular hole 5 only at the centeral position of the plate, the gas is baffled in the hearth 21 and can not quickly flow out of the stove body, so that the gas is continuously compressed in the hearth 21. Specifically, the gas is continuously cracked and expanded by the expander 4 in the hearth 21 and is continuously compressed by the plate 5, so that the substances are compressed to be small volume. The temperature and the density are increased to be at an extreme point during compressing, the bonds of gas molecules among the substances are cracked, so as to generate fusion, cause high-speed rotation and focus on the center of the top end of the external expander to form into a vortex black point. The released flame outwards erupts from the black point through the circular hole on the plate, so as to be in the shape of tornado. The released flame mixes with the gas transported into the hearth 21 from the inducting trunk 9, so as to be stirred in the narrow hearth. The mixed gas is expanded after being ignited in the hearth and rotates at a high speed, and the volume of the mixed gas is continuously compressed, so as that the mixed gas is very high in density. In the whole process of burning, a series of oxidization and reduction reactions take place in all substances in the gas, and the gas is converted to extremely high heat to be emitted and is sufficiently combusted, so that the gas is combusted more sufficiently. When the energy is released, the space volume of the compressed gas quickly expands to emit a mass of heat energy in the manner of burring, and the temperature can reach more than 1100 DEG C. However, the temperature in a combustion chamber of the hearth is only 200 DEG C. Even if ignited spark, and easily-burnt gas can not be ignited in the hearth.

The performance test result of the present invention is as follows:

Time for Test Reaching Energy Rated Temperature Boiling Energy RatedHeat Consumption Power Capacity Start End Point Consumption BTU BTU KW 5 L/L 25° C. 100° C. 5.30/munite 170/g 1485 6182 20

Auxiliary facilities and data related to test

A gas source is connected with a low-pressure safe valve An iron pan filled with 5 litre of water is arranged on an iron bracket. The bottom of the iron pan is provided with a black-hole burner, and the periphery of the iron pan is provided with no seal. The heat contained in the gas (kg=39672 BTU/10000 Kcal) An air blower with power of 300 w Intraday air temperature of 20 DEG C

Embodiment 2

As shown in FIG. 2, the number of the internal expander 41 of the expander 4 in the black-hole gas burner of the present invention is two, and the others are the same as those in the embodiment 1. 

1. An energy-saving method for gas combustion, comprising the following steps: 1) gas enters into a hearth for one time or times of compression and expansion; 2) air is introduced into the hearth and is mixed with the gas; 3) the gas is ignited, the volume of the gas and the volume of the air are rapidly expanded and compressed in the hearth, and the bonds of gas molecules are cracked; 4) the gas rotates in the hearth at a high speed and is fully combusted in a stove body to emit heat; and 5) when the gas is combusted, the gas is preheated before entering into the hearth.
 2. A black-hole gas burner, comprising a safety valve (1), a stove body (2) and a siphoning and preheating gas drum (3), wherein the structural characteristic of the gas burner is as follows: a hearth (21) of the stove body (2) is internally provided with an expander (4); the siphoning and preheating gas drum (3) having a ring-shape is arranged surrounding the stove body (2) and is communicated with a induction trunk in the expander (4); a plate (5) with a circular hole (51) in the central position of the plate is arranged on the stove body (2).
 3. The black-hole gas burner according to claim 2, wherein the expander (4) is comprised of an internal expander (41) and an external expander (42); the internal/external expanders are cylindrical shaped, square shaped, polygon shaped or star shaped objects with a cavity (6); the side edge of each cavity (6) is provided with a plurality of through-holes (61); the internal expander (41) is sheathed with the external expander (42), so that a compression cavity (7) is formed therebetween.
 4. The black-hole gas burner according to claim 2, wherein the number of the internal expander (41) or the external expander (42) is one or more than two.
 5. The black-hole gas burner according to claim 2, wherein a connecting piece (8) is arranged between the internal expander (41) and the external expander (42).
 6. The black-hole gas burner according to claim 2, wherein an induction trunk (9) is arranged between the stove body (2) and the hearth (21), and the side wall of the hearth (21) is provided with a plurality of through-holes (211).
 7. The black-hole gas burner according to claim 2, wherein an eclectic igniter (10) is arranged on the hearth (21). 